Clutch-actuating device for phonographs.



'0. LINDSTRb M. CLUTCH AGTUATING DEVICE FOR PHONOGRAPHS.

APPLIOATION FILED JUNE 10, 1910.

1,034, 126. Patented July 30,1912.

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0. LI NDSTRO'M. CLUTCH AOTUATING DEVICE FOR PHONOGRAPHS. APPLICATION FILED JUNE 10, 1910. 1,034, 126. Patented July 30, 1912.

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CARL LINDSTRijM, OF BERLIN, GERMANY.

CLUTCH-ACTUATING DEVICE 110R PHONOGRAPHS.

' Specification of Letters Patent. Application filed June 10, 1910. beria]. N0. 566,2}l3.

To all whom it may concern: v

Be it known that I, CARL Linns'rnon, a subject of the King of Sweden, and a resident of 137 Grosse Frankfurterstrasse, Berlin, Germany, have invented a certain new and useful Improvement in or Relating to Clutch-Actuating Devices for Phonographs; and I do hereby declare the following to be a full, clear, and exactdeseription of the invention, such as will. enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawing, and toletters of reference marked thereon, which form a part of this specification.

In-phonographs, and especially in n1achines for dictating, it is of importance to be able to place the cylinder out of operation at any desired moment in a convenient man.-

ner. t

This invention has for its object to provide means for this purpose.

In the accompanying drawing, Figures 1. and 1 show one form of my improved clutch-actuating device for phonographs, parts being in section and parts-in side-view. As shown, A is a knob for pressing down a sleeve B contained in a cylinder C by means of a stem D on which the sleeve ll is fixed. A sp' 211 spring E encircles the stem I) between the inner end of the sleeve ll and -the lower end of the cylinder C. This spring E has a tendency to return the sleeve B into its normal position shown in the.

drawing. A. pawl F connected to the sleeve B, is adapted to engage and rotate a toothed wheel G when the sleevp T3 is depressed by pressing the knob A.

H. is a cam disk mounted on the same axle as the toothed wheel G; it is adapted to engage studs J carried in one end of an elbowlever K. The resulting motion of the elbowlever K is transmitted by means of a disk L to the shaft Mof the phonograph cylin+ der.

N is a belt pulley running loose on the shaft M; it is provided on one side with a claw olutch-face-O. P is the clawclutch face cor'iperating therewith, fixed on an eX tension rod M The collar L is applied by a set-screw 7 extending through a, slot Z into the shaft keyed to the shaft M and disengaged from Patented July 38, 1912,

end of the elbow-lever K is depressed and t the disk L is in its right hand position in which the clutch members P and O are in engagement, so that the shaft M can now be driven positively by the belt pulley N. If now however by pressing the knob A, the 7 sleeve B is depressed, so as to operate the pawl F, wheel G, cam disk H and studs J, to tilt the elbow-lever K so as to move the disk L and through it the shaft M. for a. short distancetoward the left, the clutchmember I will be moved out of engagement with the clutch member O, -and the belt pulley N will now run loose again on the shaft M, which being no longer driven, comes to a standstill and thus stops the motion of the phonograph cylinder. The elbow-lever K may be actuated also by operating the sleeve B by pneumatic means.

In some cases for the sake of convenience, which is especially important in machines for dictating, the pneumatic operation of the sleeve B may be effected through a flexible pipe Q} by means of an air bulb Q ar ranged on the speaking tube of the machine, whereby the person dictating, is enabled to stop the phonograph cylinder at once With the greatest ease. The flexible pipe Q communicates with a-channel (1 in the upper end of the cylinder C, said. channel opening to the upper closed end of the sleeve 1? lVhat I claim is: v 1. In a chitclraotuating device for phonographs, the combination with the record shaft, of driving-means, a clutch between the record-shaft and driving-means, a con: trolling-device, and means for moving said clutch alternately in and out of clutching position, on successive impulses in the same direction of the controllingaleviee.

2. In a clutch-actuating device for phonographs, the combination with the recordshaft, of driving-ineans,'a clutch between the record-shaft and driving-means, a con trolling-device adapted to be actuated by fluid-pressure, and means for moving said clutch alternately in andout'ot clutching position onsuccessive impulses in the same direction of the eontrollbig-device. I 3. In a olut -h-actuating device for phouographs, the combination with the reconh shaft, of driving-me ins, a clutch between the record-shaft and driving-means, a controlling-device, a prtssure bulb connected with the controlling-device, and means for 5 moving said clutch alternately in and out of clutching position (n successive impulses in the same direction of said eontrolling-de- V106.

4. In a olutch-actua ing device for pho- 10 nogrep'hs, the combinalion with the record shaft, of driving-meat s, a clutch between the record-shaft and driving-means, a controlling-device, a levei -arm engaging the record-shaft, a cam-wh -el actuated by said controlling device, studs onsaid lever-arm 15 for said cam-wheel, and means operable by the Controlling-device for moving said cam, sai'd cam and means being adapted to move said arm alternately in opposite directions on successive impulses in the same direct-ion 20 of said controlling-device.

In testimony whereof I affix my signature in presence of two witnesses.

CARL LINDSTRUM.

Witnesses HENRY HASPER, WOLDEMAR I-IAUPT. 

